17-12-2025 18:35
Michel Hairaud
Bonjour à tous/Hi to everyone I am passing along
15-12-2025 15:48
Danny Newman
Melanospora cf. lagenaria on old, rotting, fallen
15-12-2025 15:54
Johan Boonefaes
Unknown anamorph found on the ground in coastal sa
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Hardware Tony
Small clavate hairs, negative croziers and IKI bb
15-12-2025 07:09
Danny Newman
indet. Rutstroemiaceae sp. on unk. fallen leavesMc
15-12-2025 07:05
Danny Newman
Pseudosclerococcum golindoi (det: Zotto)near Cosb
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Danny Newman
ITS sequences from the following two collections B
15-12-2025 12:34
Danny Newman
indet. Rhytismataceae on oak leafnear Purchase Roa
White Calycina with Chalara-anamorph
Enrique Rubio,
06-09-2019 18:25
Small, white, substipitate or broadly stipitate apothecia erumpent from bark of Quercus robur (soc. Rosellinia corticium). Asci 8-spored, IKI b with apical apparatus of the Calycina-type, arising from croziers. Ascospores usually bicellular but also short ellipsoid and unicellular. Excipulum with highly developed textura oblita. Many Chalara-like conidia attached to the hymenophoral cells.Have yo some idea for me?
Many thanks again.
Hans-Otto Baral,
06-09-2019 22:28
Re : White Calycina with Chalara-anamorph
I am sorry I cannot say. Apos look a bit immature. A positive iodine reaction I cannot see.
Enrique Rubio,
07-09-2019 00:44
Re : White Calycina with Chalara-anamorph
As you well know, it is not very easy to study a very mature Calycina in good condition.
Here is an image of the positive IKI reaction.
Here is an image of the positive IKI reaction.
Hans-Otto Baral,
07-09-2019 08:57
Re : White Calycina with Chalara-anamorph
It is strange, in this very good phoot I see the ring but no colour.
Hans-Otto Baral,
07-09-2019 08:57
Re : White Calycina with Chalara-anamorph
It is strange, in this very good phoot I see the ring but no colour.
Enrique Rubio,
07-09-2019 09:02
Re : White Calycina with Chalara-anamorph
The colour of the weakly positive ring is very pale blue
Hans-Otto Baral,
07-09-2019 09:13
Re : White Calycina with Chalara-anamorph
Ws this a twig or a thick branch? Lying on the moist ground?
From Mirek Gryc I got the suggestion that this could be related to calycina italica, but I think the large oil drops forbid such identity, also the shorter spores and more refractive VBs in the paraphyses.
From Mirek Gryc I got the suggestion that this could be related to calycina italica, but I think the large oil drops forbid such identity, also the shorter spores and more refractive VBs in the paraphyses.
Enrique Rubio,
07-09-2019 09:17
Re : White Calycina with Chalara-anamorph
The branch, lying on the moist ground, was 50 mm thick.
But the excipulum has no vesiculous cells and this makes it even further away from italica.
But the excipulum has no vesiculous cells and this makes it even further away from italica.
Mirek Gryc,
07-09-2019 10:38
Re : White Calycina with Chalara-anamorph
In fact, I wanted to confirm the identification of the collection I found.
The spores also contained oil drops. There were, of course, far fewer of them. That is why this collection interested me.
The spores also contained oil drops. There were, of course, far fewer of them. That is why this collection interested me.
However, there are many more differences between our collections, which rather excludes this species.
Mirek
Enrique Rubio,
07-09-2019 20:40
Re : White Calycina with Chalara-anamorph
Thank you Zotto and Mirek
Thank you for your kindly help.
Thank you for your kindly help.